The radiographs were digitized and exported to Image Tool 3.0.software. During processing, films had the fixing stage stopped and were exposed to a negatoscope for 1 minute, then the fixation time of 10 minutes was completed. MATERIAL AND METHOD : Ninety radiographs were taken of an aluminum stepwedge and a lead plate for each brand, and they were divided according to the time of initial immersion in the fixative in: control group (without interrupting the fixing, 5, 10, 20, 30 and 40 seconds. OBJECTIVE : The aim of this study was to evaluate the influence of interrupting the fixation process on the radiographic contrast and base-plus-fog density (BPFD in three brands of periapical films. The F-speed film processed inautomatic system has greater speed in comparison with manualprocessing system, and it provides a further reduction inradiation exposure without detriment to image quality.ĭigital evaluation of the influence of interruption of the fixation process on radiographic contrast and base-plus-fog density in three commercial brands of radiographic filmsįull Text Available INTRODUCTION : With the interest in anticipating access to the result of intraoral radiography, the radiographic processing is frequently neglected, compromising image quality. There was significant difference in speed obtained with theD-, E- and F-speed films in both manually and automatically processing systems (P = 0.034, P = 0.040.CONCLUSIONS:The choice of processing system canaffect radiographic characteristics. There was no significant difference in contrast obtained with the D-, E- and F-speed films in both manuallyand automatically processing systems (P = 0.255, P = 0.260.
There was significant difference in density obtained with the Ultraspeed andinsight films. Speedand film contrast were measured according to International Standard Organization definition.RESULTS:There was significant difference in density obtained with the D-, E- and F-speed films in both manually andautomatically processing systems (P < 0.001.
#Structurix feeder manual plus
All films were processed in Iranianprocessing solution (chemical industries Co., Iran, Tehran both manually and automatically in a period of six days.Unexposed films of three types were processed manually andautomatically to determine base plus fog density.
#Structurix feeder manual manual
The F-speed film processed in automatic system has greater speed in comparison with manual processing system, and it provides a further reduction in radiation exposure without detriment to image quality.įull Text Available BACKGROUND AND AIM:The purpose of this study was to evaluatethe sensitometric characteristics of Ultraspeed,Ektaspeed Plus and Insight dental radiographic films using manual and automatic processing systems.METHODS:In this experimental invitro study, an aluminum step-wedge was used to construct characteristic curves forD-, E- and F-speed radiographic films (Kodak Eastman, Rochester, USA. CONCLUSIONS: The choice of processing system can affect radiographic characteristics. There was significant difference in speed obtained with the D-, E- and F-speed films in both manually and automatically processing systems (P = 0.034, P = 0.04. There was no significant difference in contrast obtained with the D-, E- and F-speed films in both manually and automatically processing systems (P = 0.255, P = 0.26. There was significant difference in density obtained with the Ultraspeed and insight films. RESULTS: There was significant difference in density obtained with the D-, E- and F-speed films in both manually and automatically processing systems (P < 0.001. Speed and film contrast were measured according to International Standard Organization definition. Unexposed films of three types were processed manually and automatically to determine base plus fog density.
All films were processed in Iranian processing solution (chemical industries Co., Iran, Tehran both manually and automatically in a period of six days. METHODS: In this experimental invitro study, an aluminum step-wedge was used to construct characteristic curves for D-, E- and F-speed radiographic films (Kodak Eastman, Rochester, USA. Sensitometric characteristics of D-, E- and F-speed dental radiographic films in manual and automatic processingĭirectory of Open Access Journals (Sweden)įull Text Available BACKGROUND: The purpose of this study was to evaluate the sensitometric characteristics of Ultraspeed, Ektaspeed Plus and Insight dental radiographic films using manual and automatic processing systems.
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